U
    k]ek#                     @   s   d Z ddlZddlZddlZddgZdd ZedjZG dd	 d	e	Z
d
d Zdd Zdd Zdd Zdd Zdd Zddg fddZd#ddZg fddZdd Zdd Zd d! Zed"kre  dS )$z%Mailcap file handling.  See RFC 1524.    Ngetcaps	findmatchc                 C   s   d| krd| d fS dS d S )Nlinenor   )   r    )entryr   r   /usr/lib/python3.8/mailcap.pylineno_sort_key
   s    r	   z[^\xa1-\U0010FFFF\w@+=:,./-]c                   @   s   e Zd ZdZdS )UnsafeMailcapInputz)Warning raised when refusing unsafe inputN)__name__
__module____qualname____doc__r   r   r   r   r
      s   r
   c               
   C   s   i } d}t  D ]~}zt|d}W n tk
r8   Y qY nX | t||\}}W 5 Q R X | D ]*\}}|| krz|| |< q`| | | | |< q`q| S )a  Return a dictionary containing the mailcap database.

    The dictionary maps a MIME type (in all lowercase, e.g. 'text/plain')
    to a list of dictionaries corresponding to mailcap entries.  The list
    collects all the entries for that MIME type from all available mailcap
    files.  Each dictionary contains key-value pairs for that MIME type,
    where the viewing command is stored with the key "view".

    r   r)listmailcapfilesopenOSError_readmailcapfileitems)capsr   ZmailcapfpZmorecapskeyvaluer   r   r   r      s    



c                  C   sP   dt jkr"t jd } | t j}n*dt jkr8t jd }nd}|d dddg}|S )z7Return a list of all mailcap files found on the system.ZMAILCAPSHOME.z	/.mailcapz/etc/mailcapz/usr/etc/mailcapz/usr/local/etc/mailcap)osenvironsplitpathsep)ZpathstrZmailcapsZhomer   r   r   r   3   s    


 r   c                 C   s    t dtd t| d\}}|S )z?Read a mailcap file and return a dictionary keyed by MIME type.z2readmailcapfile is deprecated, use getcaps instead   N)warningswarnDeprecationWarningr   )r   r   _r   r   r   readmailcapfileE   s     r$   c           	      C   s   i }|   }|sq|d dks| dkr,q|}|dd dkrb|   }|sPd}|dd | }q0t|\}}|r|sxq|dk	r||d< |d	7 }|d
}tt|D ]}||  ||< qd
| }||kr|| | q|g||< q||fS )a  Read a mailcap file and return a dictionary keyed by MIME type.

    Each MIME type is mapped to an entry consisting of a list of
    dictionaries; the list will contain more than one such dictionary
    if a given MIME type appears more than once in the mailcap file.
    Each dictionary contains key-value pairs for that MIME type, where
    the viewing command is stored with the key "view".
    r   # Nz\

r   r   /)	readlinestrip	parseliner   rangelenjoinlowerappend)	r   r   r   lineZnextliner   fieldstypesjr   r   r   r   M   s4    	  
r   c           
      C   s   g }dt |  }}||k r>t| ||\}}|| |d }qt |dk rNdS |d |d |dd   }}}d|i}|D ]V}|d}|dk r|}d}	n$|d|  }||d d  }	||krqz|	||< qz||fS )	zParse one entry in a mailcap file and return a dictionary.

    The viewing command is stored as the value with the key "view",
    and the rest of the fields produce key-value pairs in the dict.
    r   r   r   NNNview=r&   )r.   
parsefieldr1   findr+   )
r2   r3   infieldr   r7   restZfkeyZfvaluer   r   r   r,   v   s*    

 

r,   c                 C   sP   |}||k r<| | }|dkr q<q|dkr2|d }q|d }q| ||   |fS )z/Separate one key-value pair in a mailcap entry.;\r   r   )r+   )r2   r;   r<   startcr   r   r   r9      s    

r9   r7   z	/dev/nullc           
      C   s   t |r"d|f }t|t dS t| ||}|D ]`}d|krlt|d ||}|dkrXq2|rlt|dkrlq2t|| |||}	|	dk	r2|	|f  S q2dS )a  Find a match for a mailcap entry.

    Return a tuple containing the command line, and the mailcap entry
    used; (None, None) if no match is found.  This may invoke the
    'test' command of several matching entries before deciding which
    entry to use.

    zHRefusing to use mailcap with filename %r. Use a safe temporary filename.r6   testNr   )_find_unsafer    r!   r
   lookupsubstr   system)
r   MIMEtyper   filenameplistmsgentrieserC   commandr   r   r   r      s     	
c                    sl   g }|| kr|| |  }| d}|d d }|| krB|| |  } d k	r\ fdd|D }t|td}|S )Nr)   r   z/*c                    s   g | ]} |kr|qS r   r   ).0rM   r   r   r   
<listcomp>   s      zlookup.<locals>.<listcomp>rP   )r   sortedr	   )r   rH   r   rL   Z	MIMEtypesr   rP   r   rE      s    
rE   c                 C   sR  d}dt |  }}||k rN| | }|d }|dkr^|dkrT| ||d  }|d }|| }q| | }|d }|dkr|| }q|dkr|| }q|dkrt|rd|f }t|t d S || }q|d	kr@|}	||k r| | d
kr|d }q| |	| }
|d }t|
|}t|r6d||
f }t|t d S || }q|d | }q|S )Nr&   r   r   %r@   stz9Refusing to substitute MIME type %r into a shell command.{}z=Refusing to substitute parameter %r (%s) into a shell command)r.   rD   r    r!   r
   	findparam)r=   rH   rI   rJ   resr;   r<   rB   rK   rA   nameZparamr   r   r   rF      sH    
  
 








rF   c                 C   sF   |   d } t| }|D ](}|d |   | kr||d    S qdS )Nr8   r&   )r0   r.   )rZ   rJ   r<   pr   r   r   rX      s    rX   c            	      C   s   dd l } t }| jdd  s(t| d S tdt| jdD ]}| j||d  }t|dk rjtd  d S |d }|d }t||d|\}}|stdt q:td| t	
|}|r:td| q:d S )	Nr   r   r   z"usage: mailcap [MIMEtype file] ...r7   zNo viewer found forz
Executing:zExit status:)sysr   argvshowr-   r.   printr   typer   rG   )	r\   r   r;   argsrH   filerN   rM   stsr   r   r   rC     s&    

rC   c                 C   s   t d t D ]}t d|  qt   | s0t } t d t   t| }|D ]H}t | | | }|D ].}t|}|D ]}t d| ||  qrt   qbqJd S )NzMailcap files:	zMailcap entries:z  %-15s)r_   r   r   rR   )r   fnZckeysr`   rL   rM   keyskr   r   r   r^     s"    
  r^   __main__)N)r   r   r    re__all__r	   compilesearchrD   Warningr
   r   r   r$   r   r,   r9   r   rE   rF   rX   rC   r^   r   r   r   r   r   <module>   s*   )
)